Carbureter.



No. 707,897. Patented Aug. 26, |902.

W. F. BETZEL.

ma mmm PzrERs co, Puocxurno., WASHINGTON. DA c.

Patented Aug. 26, |902 C A R B U B E T E B.

(Application led May 5, 1902.)

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WILLIAM F. BETZEL, OF PORTSMOUTH, VIRGINIA, ASSIGNOR OF ONE-HALF TO ROBERT T. THORP, OF NORFOLK, VIRGINIA.

CARBURETER.

SPECIFICATION forming part of Letters Patent No. 707,897, dated August 26, 1902.

Application filed May 5,1902. Serial No. 106,006. (No model.)

To all whom, it may concern:

Be it known thatl, WILLIAM F. BETZEL, a citizen of the United States, residing at Portsmouth, in the county of Norfolk and State of Virginia, have invented certain new and useful Improvements in Oarbureters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in carbureters the air-forcing device of which is operated wholly by the pressure of water in an ordinary city main; and the object of my invention is to produce a simple, cheap, and eective device of this class which can be used for the production of gas for heating and illuminatingpurposes, usually the latter.

In the accompanying drawings, Figure l is a vertical cross-section of my improved device. Fig. 2 is a horizontal cross-section on the line 2 2 of Fig. 1.V Fig. 3 is a perspective v iew of the valve-retaining apparatus. Fig. et is a cross-section of the four-way valve, and Fig. 5 is an inverted plan view of the air-coil.

ct represents an open-topped vessel or tank, preferably cylindrical in shape. This is divided into three chambers by means of the partitions l) and c. tank a is a tube d, closed at the top and bottom, which tube extends from the top to the bottom of the tank a, passing through the partitions b and c, all these parts being gastight. Within the tank a is a belle, open at the bottom in the usual way, provided with a top and arim g. If desired, sand or other heavy material may be placed on the top of,

this bell to increase it weight; but this is not usually necessary. The bell is free to move up and down in the tank a and is guidedby means of concave rollers h, which run on rods t, secured in the inside of the tank a and supported on the partition b. Any desired- Oentrally located in the,

suit being that when the bell rises the valves open and permit air to enter said bell; but when said bell falls the valves close, the result being that the bell in its descent acts as an air-pump. Attached to the cover f is a Another arm n is adjustably fastened to said 6o rod by means of a screw 0.

p represents a pistonrod attached, by means of nuts q, to the center of the top of the bell. Washers o, of any desired material, are used in connection with said nuts to make the joint gas-tight. This piston-rod passes through a perforation in the top of the tube CZ and is provided near its lower end with a piston s, the tube d serving as a long cylinder, in which the piston travels, 7o

carrying with it the bell e. The piston and the bell are operated by water entering the pipe t, which is connected to a. water-main. This pipe terminates in a fitting u provided with four openings, one of whichI is always left open, and in the other three openings to which pipest, n, and tu are connected, the, two latter pipes being connected tothe tube d near the opposite ends thereof. Within the four-way itting u is a valve and in the 8o actual use of the machine it occupies one of the two positions shown in Figa. When in the position shown in full lines, the Water enters the pipe t, passes down through the pipe w and underneath the piston s, lifting said4 piston, and thereby the bell e, and causing air to enter the top of the bell. After the bellhas been lifted to the desired height the valve is shifted (by means hereinafter described) into the position shown in dotted 9o lines in Fig. 4. The water then enters through the pipes 't and o above the piston s and forces it and the bell e downwardly, the Weight ot'said parts assisting in this action, while the water which is in thetube d belowthe'piston s passes'out through the pipe fw and the fitting n into the main portion of the tank a. On its downward movement the bell e acts as an air pump or compressor, as will be more fully described hereroo inafter. The means for shifting the valve which is shown in Fig. 3, will now be described.

y represents a long narrow rectangular 'frame preferably made of stout wire or round iron. At its center it is provided with a cross-piece z. This cross-piece has a central pin l, which is pivotally supported centrally upon the fitting it.

2 and 3 represent projecting pins secured te said frame, which pins are adapted to alternately engage the valve-stem 4, secured to the valve fr.

5 and 6 represent concave wheels iitted within the frame y and adapted to move back and forth in the same. These wheels are secured together by a plate 7, the lower part 8 of which is enlarged, so as to be of considerable weight.

The operation of the valve-shifting device is as follows: When the bell e rises, the plate m comes in contact with the lower edge of the frame (Lf, swinging it around its pivot-pin l. This causes the weighted wheels to run to the right on Fig. 3, the pin 3 meanwhile engaging the under side of the valve-stem 4 and lifting it. The weighted wheels hold the valve in this position until they are positively moved, and they serve to make the action of the pin 3 on the valve-stem 4 eective. As the bell e falls the arm or plate ai at the proper time comes in contact with the upper part of the frame y, forcing it down. The weighted wheels then run to the left of the frame y and hold the left end of said frame down, the pin 2 meanwhile moving the valve-stem 4, so that the valve :c assumes the position shown in dotted lines in Fig. 4. The parts are so arranged and so proportioned as t Weight that the wheels 5 and 6 cannot move the frame y of themselves; but when said frame is moved by the arms m and n they retain the frame in the position into which it has been moved until it has been again operated by said arms. Connected to the tank a is a similarlyshaped tank 9,provided with partitions and 1l, in which an open-mouthed bell 12, provided with a top 13 and elevated rim 14, works up and down, being guided by concave rollers 15 on rods 16, as already described. The U-shaped pipe 17 runs through the partitions b and lO and extends to approximately the tops of the tanks ci and 9. The part of this pipe which is located in the tank a is open; but the other end of the pipe, which is located in the tank 9, is provided with a collapsible valve 18, as already described. The tanks are further connected by a pipe 19, provided with a drain-pipe 20, which serves to keep the water in said tanks from rising above a predetermined level. A pipe 2l conneet-s the chambers between the partitions b c and 10 1l, and a similar pipe 22 connects the chambers below the partitions c and 1l. A pipe 23, provided with a valve 24, is used for filling or partially filling the chambers above the partitions 11 ando, and a similar a great number of gas-producers.

pipe 25, provided with a valve 26, is lused for filling or partially lling the chambers below said partitions. In the chamber 27, below the partition 11, is located a spirally-formed coil of pipe 28. To the inner and outer end of said spiral, by means of branch pipes 29 30, is connected a pipe .31, which extends to the top of the tank 9. This pipe 2S is provided with a series of perforations at intervals all along its upper surface. Within the chamber 32, located between the partitions l0 and l1, is a similarly-shaped coil of pipe 33, to the opposite ends of which bent tubes 34 and are respectively connected. The other ends of the bent tubes 34 and 35 pass down through the partitions 1l, whereby the gas formed in the chamber 27 is caused to pass through the pipes 34 and 35 into the pipe 33, which is provided with perforations along its upper surface. By meansof the filling-pipes 23 and 26 a small amount of water is admitted into the chambers 27 and 32, and in practice 1 find that just enough water should be admitted to fully cover the pipes 28 and 33 with a thin layer. Gasolene or any suitable gas-producing substance is then admitted into the chambers 27 and 32 above the water, the result being that the air forced through the tube 3l by the descent of the bell l2, which may be weighted, if desired, passes out through the perforations in the pipe 28 through the water and the gasolene contained in thechamber27,therebyformingagas. This gas is then further enriched by being passed in a similar way through the water and gasolene contained in the chamber 32. In the lower part of the tank a in the chamber 36, situated below the partition c, and in the chamber 37, situated between the partit-ions b and c, are located gas producers and enrichers similar in construction to the one already described, air being supplied thereto by means of the pipe 3S, which passes from the top of the tank 9 downwardly and into the chamber 36. Of course as many producers and enrichers may be used as desired, and the various parts of the apparatus may be multiplied indeiinitely; but I find that one driving-bell like the bell e is sufficient to run The gas is taken off for use by means of the pipe 39, connected to the chambers 32 and 37, which pipe is provided with a service-pipe 40.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

l. In a carbureter,the combination of a tank provided with separate chambers,a perforated pipe spirally coiled in each of said chambers, a pipe connected to both ends of the spiral coil in one of said chambers, means for forcing air through said pipe, and connections running from the first chamber to both ends of the spiral pipe in the second chamber.

2. In a carbureter,tl1e combination of a tank provided with a carbureting-chamber, a bell in said tank, a perforated spiral coil in said IOO IIO

chamber, an air-pipe connected by branch pipes to both ends of said spiral pipe, said air-pipe extending up inside of said bell, and means for forcing air into said bell.

3. In a carbureter, the combination of a plurality of similarly-shaped tanks and pipes connecting the same, one of said pipes running to the top of said tanks and provided with a check-valve, carbureting chambers in said tanks, bells in said tanks, spirally-arranged perforated pipes in said chambers and airpipes connected by branch pipes to each end of each of said spiral pipes, said air-pipes running nearly to the top of one of said tanks, and means for forcing air from one of said tanks into the other.

4. In a carbureter, the combination of a plurality of similar tanks each provided with a plurality of carbnreting-chambers, bells in said tanks, liquid and air pipes connecting said chambers and tanks, spirally-arranged l 

